remove implication duo_focus (28033) -> group (466459)
create implication trio_focus (1306) -> group (466459) # duplicate of implication #28681
remove implication threesome (59601) -> group_sex (106171)
remove implication sandwich_position (3875) -> group_sex (106171)
remove implication train_position (2699) -> group_sex (106171)
remove implication triangle_position (808) -> group_sex (106171)
remove implication spitroast (16246) -> group_sex (106171)
remove implication reverse_spitroast (409) -> group_sex (106171)
remove implication collaborative_footjob (252) -> group_sex (106171)